Trans Mountain Miette River Encroachment Site 6

Trans Mountain Pipeline ULC is proposing an engineered bank armouring project along a 50-metre section of the Miette River in Jasper National Park. Ground inspections identified a geohazard from steady erosion of the riverbank to within 3.2-metres of the existing Trans Mountain Line 1 and Line 2 pipelines at kilometer post KP403.43. Trans Mountain plans to protect the pipeline from exposure and damage by constructing a riprap revetment, a self launching apron and a raised earthen cutoff berm west of the revetment location. With the implementation of these engineered measures, the existing pipelines will be protected from potential exposure or future damage caused by continued erosion of the Miette riverbank. The project will require access along the pipeline right-of-way and require a disturbance footprint of 1-2 hectares to construct the riprap apron and berm. Constructing the toe of the riprap apron will require work below the ordinary high-water mark of the river. Project activities include vegetation clearing, grading, compaction, placing of fill above and below the ordinary high-water mark, and seeding and planting with native species. The work is tentatively planned for fall 2026 and will take a small workforce about one month to complete.

Latest update

February 21 2026 – The public comment period on the project is closed. Parks Canada and Fisheries and Oceans Canada are considering comments received to help inform its determination on whether the carrying out of the project is likely to cause significant adverse environmental effects.

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Contacts

Jasper National Park
Box 10
Jasper, Alberta T0E 1E0
Telephone: 780-852-6141
Email: evaluationdimpactjasper-jasperimpactassessment@pc.gc.ca


Disclaimer

This map is for illustrative purposes. The markers represent the approximate locations based on available data. More than one marker may be identified for a given assessment.

  • Location

    • Jasper National Park of Canada (Alberta)

  • Nature of Activity

    • Oil and Gas

  • Assessment Status

    In progress

  • Start Date

    2026-01-22

  • Proponent

    Trans Mountain Pipeline ULC

  • Authorities

    • Fisheries and Oceans Canada
    • Parks Canada Agency

  • Assessment Type

    Project on federal lands

  • Reference Number

    90176

Nearby assessments

...within 200 kilometres
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